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// erasing specific words from sentence,
// except if it is the first word
// in that sentence
#include <iostream>
#include <string>
#include <cstring>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
string sSentence;
cout << "Input a sentence: ";
getline(cin, sSentence);
// input this: na alfa na beta ne gamma ne delta ni epsilon; output: NABGDE
for(size_t i = 0; i < sSentence.length(); i++)
sSentence[i] = tolower(sSentence[i]);
char del[]=" ";
//
vector<string>skipThis;
skipThis.push_back("na");
skipThis.push_back("ne");
skipThis.push_back("ni");
//
char sentence[sSentence.length()+1];
strcpy(sentence, sSentence.c_str());
char *pch;
pch = strtok(sentence, del);
vector <string> words;
while(pch != NULL)
{
words.push_back(pch);
pch = strtok(NULL, del);
}
// ************************************************************************
// How to improve this part? do while, while, some vector function...?
// -------------------------
// if /na, ne, ni/ == the first word, do not check, should stay in sentence
size_t k = words.size();
for (size_t j = 0; j < k; j++)
{
for (size_t i = 0; i < skipThis.size(); i++)
{
// do not check first word
vector<string>::iterator it = find(words.begin()+1, words.end(), skipThis.at(i));
if (it != words.end())
{
int d = distance(words.begin(),it);
words.erase(words.begin()+d);
k--;
}
}
}
//********************************************************************
vector<char>fl;
for(size_t i = 0; i < words.size(); i++)
{
char p = toupper(words.at(i).at(0));
fl.push_back(p);
}
//
cout << '\n';
for(size_t i = 0; i < fl.size(); i++)
cout << fl.at(i);
return 0;
}
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